<template>
    <el-container class="home-container">
        <!-- 头部区域 -->
        <el-header>
            <div>
                <!-- <img src="../assets/logo.png" alt=""> -->
                <span>电商后台管理系统</span>
            </div>
            <el-button type="info" @click="logout">退出</el-button>
        </el-header>
        <!-- 主体区 -->
        <el-container>
        <!-- 侧边栏 -->
        <el-aside :width="isCollapse? '64px' : '200px'">
            <div class="toggle-button" @click="toggleCollapse">|||</div>
            <el-menu
                background-color="#333744"
                text-color="#fff"
                active-text-color="#ffd04b"
                unique-opened
                :collapse="isCollapse"
                :collapse-transition="false"
                router
                :default-active="$route.path"
            >
                <!-- 一级菜单 -->
                <el-submenu 
                    :index="item.id + ''" 
                    v-for="item in menuList" 
                    :key="item.id"
                    active-text-color="#ffd04b"
                  
                >
                    <template slot="title">
                        <i :class="iconsObj[item.id]"></i>
                        <span>{{item.authName}}</span>
                    </template>
                    <!-- 二级菜单 -->
                    <el-menu-item :index="'/'+item.path" v-for="subItem in item.children" :key="subItem.id">
                        <template slot="title">
                            <i class="el-icon-menu"></i>
                            <span>{{subItem.authName}}</span>
                        </template>
                    </el-menu-item>
                </el-submenu>
            </el-menu>
        </el-aside>
        <!-- 右侧主体区 -->
        <el-main>
            <router-view></router-view>
        </el-main>
        </el-container>
    </el-container>
</template>

<script>
    export default {
        data() {
            return {
                menuList: [],
                iconsObj: {
                    '125': 'iconfont icon-user',
                    '103': 'iconfont icon-tijikongjian',
                    '101': 'iconfont icon-shangpin',
                    '102': 'iconfont icon-danju',
                    '145': 'iconfont icon-baobiao'
                },
                // 默认不折叠
                isCollapse: false
            }
        },
        created () {
            this.getMenuList();
        },
        methods: {
            // 退出按钮
            logout() {
                window.sessionStorage.clear()
                this.$router.push("/login")
            },
            async getMenuList(){
                const{data: res} = await this.$http.get("menus")
                if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
                this.menuList = res.data
            },
            // 点击按钮切换菜单的折叠和展开
            toggleCollapse(){
                this.isCollapse = !this.isCollapse
            }
        },
    }
</script>

<style lang="less" scoped>
.home-container{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: aliceblue;
}
.el-aside{
    background-color: #333744;
    .el-menu {
        border: 0;
    }
}
el-main{
    background-color: #eaedf1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4a5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: .2em;
    cursor: pointer;
}
</style>